Published at 8:45 AM PDT on Sep 20, 2012

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Facebook is looking for revenue streams as well as ways to shore up its share price, which has fallen 40 percent since its IPO.

To that end, its Offers program is going to be migrated from free to requiring payments from businesses for the social shopping service. Brands were able to share discounts and offers via their newsfeeds and users could click and claim. Now that service will cost at least $5 per post, according to the Chicago Tribune.

The cost varies based on the size of the company's Facebook presence.

In addition to the payment system, Facebook is adding online-only businesses where before only brick-and-mortar businesses could use Offers.

Barcodes are also being added, making the mobile scan-for-payment option more appealing.